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crackling noise on throttle lift? normal?
I have 10 miles and a short break-in on my stroked 351. I bailed on the Holley and went with a edelbrock 750cfm. After getting the timing , idle mixture set and idle rpm set.
On my short test hops. I notice it crackles or short backfire sounding noise. I think it sound great.:) My buddy thinks its running rich? so the excess fuel is making the cracking noise on throttle lifts. It has ton of power and accelerate very strong. I haven't check the spark plug color yet. What does your sound like after running hard through two gear shifts and lifting off the accelerator? Should I be concerned? Ron http://www.clubcobra.com/photopost/d...eldebrock3.JPG |
Tighten Your Headers
and check the connection from the primaries to the sidepipes. What your describing is not uncommon for exhaust related issues.
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What Patrickt said. When I ran hard through a corner and lifted mine just came out as a roar. But after every run I would check the exhaust bolts and everything as I heard a lot of them popping and crackling as they lifted from thee gas.
Ron |
Hey RDC what kind of kit is that you are putting together. Ours is a CMC that was put out about 1992. Here is a picture
Tom http://www.me.com/gallery/#100012 |
Thanks
I have notice the header bolts loosening on there own. I need to get some of those locking header bolts. The header to sidepipe joint is a slip joint with spiring retainers. rdc |
Wants to be difficult does it!
I tried to upload a picture but apparently did not do it right. Here is a link to some pics of the kit
Cobra pix Tom |
:)
Tom, Both are very nice cars. Looks as if yours is about ready to go. I will see if I can put the picture in this post for you. That is one nice, big garage. Wish I had one that large. http://www.squireairport.com/Site_2/...iles/cobra.jpg Ron :) |
nice lift and cobra!. Love the color. Antique & Collectibles out of Buffulo NY. Nothing fancy but very nice fiberglass and Gel coat is awesome no painting. This is my first engine build and I am proud it runs and no piece flew out!!
I check around the headers and number 5 was leaking bad. The header bolt was very loose. I was using copper gaskets and stainless header bolts. I am getting ready to put it away for the winter and I am going to send the headers and pipes off for cermamic coatings. So I can put better bolts and seal the sidepipe joint with some exhaust rtv. rdc |
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